Cooperation is the foundation of many protocols in wireless networks. Without cooperation, the performance of a network significantly decreases. Hence, all nodes in traditional networks are required to cooperate with each other. In this paper, instead of traditional networks, a network of rational and autonomous nodes is considered, which means that each node itself can decide whe...

Cooperation is the foundation of many protocols in wireless networks. Without cooperation, the performance of a network significantly decreases. Hence, all nodes in traditional networks are required to cooperate with each other. In this paper, instead of traditional networks, a network of rational and autonomous nodes is considered, which means that each node itself can decide whe...

This paper studies the maximum level of cooperation that can be sustained in sequential equilibrium in repeated games with network monitoring, where players observe each other’s actions either perfectly or not at all. The foundational result is that the maximum level of cooperation can be sustained in grim trigger strategies. If players are equally well monitored, comparative statics on the max...

We study a condition of favoring cooperation in Prisoner's Dilemma game on complex networks. There are two kinds of players: cooperators and defectors. Cooperators pay a benefit b to their neighbors at a cost c, whereas defectors only receive a benefit. The game is a death-birth process with weak selection. Although it has been widely thought that b/c>〈k〉 is a condition of favoring cooperation ...

We analyze relations between evolution of cooperation on networks and network structures. Most researchers have used simple networks, such as scale-free networks and random networks. We performed decision tree analysis on various networks. The decision tree is constructed from cooperation degree and five network feature. Here, these five network features are selected from a lot of network featu...